Akbar Torkan ( Persian : اکبر ترکان ; 1952–2021) was an Iranian mechanical engineer and politician, who was the President Hassan Rouhani 's chief adviser from 2013 to 2018. He was the CEO of Iran's Construction Engineering Organization from 2014 to 2017. He was also the Minister of Defence and Armed Forces Logistics and Minister of Roads and Transportation in the government headed by President Akbar Hashemi Rafsanjani .